DE2825166C2 - - Google Patents
Info
- Publication number
- DE2825166C2 DE2825166C2 DE2825166A DE2825166A DE2825166C2 DE 2825166 C2 DE2825166 C2 DE 2825166C2 DE 2825166 A DE2825166 A DE 2825166A DE 2825166 A DE2825166 A DE 2825166A DE 2825166 C2 DE2825166 C2 DE 2825166C2
- Authority
- DE
- Germany
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782825166 DE2825166A1 (de) | 1978-06-08 | 1978-06-08 | Verfahren und vorrichtung zum herstellen von rohrbogen mit sich von einem zum anderen ende verjuengendem querschnitt |
AT0398979A AT365951B (de) | 1978-06-08 | 1979-05-31 | Verfahren und vorrichtung zum herstellen von rohrbogen mit sich von einem zum andern ende verjuengenden querschnitt |
IT23261/79A IT1121249B (it) | 1978-06-08 | 1979-06-04 | Procedimento ed apparato per produrre corpi tubolari arcuati,la coi sezione trasversale si restringe progressivamente da un'estremita'all'altra |
FR7914777A FR2427859B1 (fr) | 1978-06-08 | 1979-06-08 | Procede et dispositif pour la fabrication de raccords courbes dont la section diminue d'une extremite a l'autre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782825166 DE2825166A1 (de) | 1978-06-08 | 1978-06-08 | Verfahren und vorrichtung zum herstellen von rohrbogen mit sich von einem zum anderen ende verjuengendem querschnitt |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2825166A1 DE2825166A1 (de) | 1979-12-13 |
DE2825166C2 true DE2825166C2 (US08124630-20120228-C00152.png) | 1987-02-05 |
Family
ID=6041349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782825166 Granted DE2825166A1 (de) | 1978-06-08 | 1978-06-08 | Verfahren und vorrichtung zum herstellen von rohrbogen mit sich von einem zum anderen ende verjuengendem querschnitt |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT365951B (US08124630-20120228-C00152.png) |
DE (1) | DE2825166A1 (US08124630-20120228-C00152.png) |
FR (1) | FR2427859B1 (US08124630-20120228-C00152.png) |
IT (1) | IT1121249B (US08124630-20120228-C00152.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107971377A (zh) * | 2017-11-03 | 2018-05-01 | 北京国电富通科技发展有限责任公司 | 弯头成型模具及成型方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4989435A (en) * | 1989-12-11 | 1991-02-05 | Kabushiki Kaisha Asahi Kinzoku Hogyosho | Method and apparatus for manufacturing curved pipe |
CN102319783A (zh) * | 2011-06-24 | 2012-01-18 | 江阴中南重工股份有限公司 | 等径等壁厚管件的热推弯生产方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE472415C (US08124630-20120228-C00152.png) * | ||||
DE592521C (de) * | 1934-02-08 | Jakob Schmitz | Verfahren zum Abstreifen des durch Ziehen eines gekruemmten Dornes durch ein gerades Rohrstueck hergestellten Rohrbogens vom gekruemmten Dornende | |
DE573890C (de) * | 1931-04-25 | 1933-10-10 | Rohrbogenwerk G M B H | Verfahren zur Herstellung von Rohrbogen o. dgl. |
US2105075A (en) * | 1935-10-08 | 1938-01-11 | Tube Turns Inc | Method and apparatus for making pipe bends |
GB688519A (en) * | 1950-05-29 | 1953-03-11 | Tube Turns Inc | Improvements in or relating to apparatus for and method of forming a reducing elbow |
US2750026A (en) * | 1950-05-29 | 1956-06-12 | Nat Cylinder Gas Co | Apparatus for producing reducing elbows |
DE1056905B (de) * | 1957-10-23 | 1959-05-06 | Kocks Gmbh Friedrich | Verfahren zum Biegen von Rohren |
DE1261102B (de) * | 1960-06-23 | 1968-02-15 | Meyer F | Verfahren und Vorrichtung zum Herstellen von Rohrbogen mit sich vom einen zum anderen Ende gleichmaessig verjuengendem Querschnitt |
DE1241684B (de) * | 1963-07-13 | 1967-06-01 | Stephanie Klockow Geb Christen | Verfahren zur Herstellung eines Rohrbogens |
DE1246362B (de) * | 1964-04-02 | 1967-08-03 | Stephanie Klockow Geb Christen | Rohrbiegevorrichtung |
CH521179A (de) * | 1971-03-18 | 1972-04-15 | Fischer Ag Georg | Vorrichtung zum Herstellen von Rohrkrümmern |
DE2707747A1 (de) * | 1977-02-23 | 1978-08-31 | Vahlbrauk Lorowerk | Vorrichtung zur herstellung nahtloser rohrbogen |
-
1978
- 1978-06-08 DE DE19782825166 patent/DE2825166A1/de active Granted
-
1979
- 1979-05-31 AT AT0398979A patent/AT365951B/de not_active IP Right Cessation
- 1979-06-04 IT IT23261/79A patent/IT1121249B/it active
- 1979-06-08 FR FR7914777A patent/FR2427859B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107971377A (zh) * | 2017-11-03 | 2018-05-01 | 北京国电富通科技发展有限责任公司 | 弯头成型模具及成型方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2427859B1 (fr) | 1985-08-30 |
AT365951B (de) | 1982-02-25 |
IT1121249B (it) | 1986-03-26 |
DE2825166A1 (de) | 1979-12-13 |
FR2427859A1 (fr) | 1980-01-04 |
ATA398979A (de) | 1981-07-15 |
IT7923261A0 (it) | 1979-06-04 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: SIEKMANN FITTINGS GMBH & CO KG, 2842 LOHNE, DE |
|
8339 | Ceased/non-payment of the annual fee |